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Simplifying 2x2 + bx + c = 0 Reorder the terms: bx + c + 2x2 = 0 Solving bx + c + 2x2 = 0 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-1c' to each side of the equation. bx + c + -1c + 2x2 = 0 + -1c Combine like terms: c + -1c = 0 bx + 0 + 2x2 = 0 + -1c bx + 2x2 = 0 + -1c Remove the zero: bx + 2x2 = -1c Add '-2x2' to each side of the equation. bx + 2x2 + -2x2 = -1c + -2x2 Combine like terms: 2x2 + -2x2 = 0 bx + 0 = -1c + -2x2 bx = -1c + -2x2 Divide each side by 'x'. b = -1cx-1 + -2x Simplifying b = -1cx-1 + -2x
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